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Gilmont* Flowmeters
. Wide selection of flow ranges-¯measure air from 0.02 ml/min. to 675 L/min. or water from 0.0002 ml/min. to 20 L/min.
. High-accuracy correlated flowmeters-¯ ±2% of reading
. Excellent chemical compatibility with glass and PTFE construction
Unshielded Flowmeters:
Choose unshielded flowmeters for high purity and corrosion resistance in low-pressure applications. PTFE stops accept taper joints to make quick glass-to-glass connections. Unshielded flowmeters feature small outside diameters-¯meters require minimal space.
Shielded Flowmeters:
Use these flowmeters for higher pressure applications. The clear polycarbonate shield adds strength and protects the tube from damage. Fluid contacts only the borosilicate glass tube, PTFE body, and VITON* fluoroelastomer O-rings-¯not the polycarbonate shield. End bushings are polypropylene with PTFE inserts. Order coupling adapters on facing page to prevent fluid from contacting the end bushings.
Shielded Flowmeters with Valves:
Choose these flowmeters for greater control; micrometer capillary valves ensure precise, reproducible measurement and flow control. Shields are clear polycarbonate; valve consists of a precision-bore glass tube for the fluid and a precision-ground rod of PCTFE (PTFE for sizes 4, 5, 14, and 15) controlled by a micrometer. The 20-turn micrometer valve can be adjusted from 0.1 to 100% of maximum flow-¯control is semilogarithmic. Precise regulation can be obtained through 19.5 turns (0.3 to 60% of maximum flow). You can interchange flowtubes among valve assemblies of the same size.
Direct Reading Flowmeters:
Take air and water readings directly with these compact meters-¯no calibration curves needed for glass floats. Accuracy is ±5% of reading or 2 mm of the scale length, whichever is greater. NIST certificates available.